b'54131131C 13-14 October 1928 (AAMC.126) New Zealand (Blenheim) - Australia (Sydney) cover, flown aboard the Southern Cross on its return flight following the triumph of the first crossing from west to east in September (see AAMC.124). The crew comprising of Charles Kingsford Smith, Charles Ulm, H.A. Litchfield and T. McWilliams was the same; this rare cover being signed by Charles Ulm and addressed to his wife. [One of only 16 flown]. $2,5003,500132132C 30 Mar. 1929 (AAMC.131) Australia - England cover carried by Charles Kingsford Smith, Charles Ulm, HA Litchfield & T McWilliams on the Coffee Royal incident flight endorsed Per Squadron-Leader CE Kingsford Smith & Flight-Lieut CTP Ulm SOUTHERN CROSS AUSTRALIA/ENGLAND FLIGHT MARCH 1929 signed C Kingsford-Smith and CTP Ulm on face franked with KGV 1d red tied RICHMOND/30MR29/NSW datestamp, Cat $2,750.Ex Frommer, sold for $4300+ in the September 2016 sale of his Grand Prix Pioneer Australian Air Mails Collection.On 1 April en route to England the Southern Cross met bad weather and made an emergency landing in the Kimberley region of northern Western Australia; before the crew and plane were recovered on 13 April, Keith Anderson and Robert Hitchcock had perished in the search; dubbed the Coffee Royal incident after the brand of coffee and brandy the crew drank while awaiting rescue; 8 of the 12 covers carried were subsequently flown to England on the record-breaking flight in June. .$3,8004,200'